I can replicate this on a Thinkpad X230i running archlinux with latest 4.14.7 kernel, without the ZFS modules.
Steps to reproduce: 1) create a virtual machine using libvirt (attached xml) 2) virsh start vm 3) head /sys/fs/cgroup/unified/machine.slice/machine- qemu\\x2d2\\x2dvm.scope/cgroup.procs This hangs the laptop requiring a hard reset. Regards, George
vm.xml
Description: XML document
